A novel phased-array thermography concept for non-destructive testing.

ABSTRACT: Phased array technology involves the coordinated control of multiple elements to steer and focus elastic, electromagnetic, light, seismic, and radio waves in a specific location or direction. In structural integrity applications, it enables the precise inspection of materials and the identification of flaws/defects in structures. In this paper, we proposes a novel phased array method based on the steering and focusing of thermal waves, not previously explored for applications in NDT, named Phased-Array Thermography (PAT). This new three-dimensional approach aims to overcome the main limitations of most of the Active Infrared Thermography (IRT) methods that uniformly heat the component surface and generate a normal temperature gradient, resulting in lack of control in the gradient direction

SUBMITTER: Martinelli C 

PROVIDER: S-EPMC12594793 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature